The new seal with full accessories packaging<br />IE80 wide sound field・ headphone low dive・ good elasticity・ knot strength and taste・ the intermediate frequency intensity big・ full bodied vocals・ high-frequency permeability bright・ has a good resolving power・ sound field open・ good location.<br /><br />About burn:<br />1・ with some soft music at lower volume levels to relieve the headset first 10-30 hours;<br />2・ with ordinary music (rock・ except dance) boil at medium volume for 100-200 hours;<br />During this process<br />1・ can not work continuously for too long・ because the voice coil to work for a long time may have a fever・ it will burn the voice coil! Preferably separated two hours to stop a few minutes and then continue.<br />2・ the volume must not be too large or violent pull the diaphragm will cause the voice coil loose・ diaphragm deformed or even tear.